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IBBC CAPITAL ACADEMY / 2027

ABS structures, enhancements and collateral behavior

Independent IBBC Capital draft content for self-study. Not affiliated with or endorsed by CFA Institute. New lessons await subject-matter review. No CFA designation or official PSM credit is awarded.

Learning goals

  • Explain credit enhancement using mechanisms and limitations.
  • Explain collateral families using mechanisms and limitations.
  • Explain waterfall exposure using mechanisms and limitations.

Draft · approximately 25 minutes, excluding further revision.

Credit enhancement

Overcollateralization provides assets above liabilities, while subordination assigns first losses to junior claims; neither changes the initial quality of borrowers.

Excess spread can absorb losses but may disappear if asset yields fall or delinquencies rise; reserve accounts also have limited capacity.

Collateral families

Covered bonds normally remain obligations of the issuer with an identified cover pool, giving a different recourse structure from many bankruptcy-remote ABS vehicles.

Auto-loan ABS generally amortize with loan collections; revolving credit-card structures may reinvest collections before an amortization phase and face early-amortization triggers.

Waterfall exposure

A CDO finances a portfolio through tranches; collateral correlation can concentrate losses in senior pieces when many defaults arrive together.

Analyze payment priority, triggers, servicer disruption and collateral concentration; a high senior rating is not a substitute for understanding the waterfall.

Formula and assumptions

Overcollateralization=asset balance−note balance; specify ratio denominator

Original applied case: ABS structures, enhancements and collateral behavior

  1. A vehicle holds assets 110 against issued notes 100, with no other claims in a toy structure.
  2. Overcollateralization is 10, or 10% of notes and 9.09% of assets.
  3. State the denominator before comparing enhancement ratios across transactions.

Errors to catch

  • Do not assume: Subordination improves every borrower’s ability to pay.
  • Do not assume: Excess spread can absorb unlimited losses.
  • Do not assume: Covered bonds and all ABS have identical recourse.

Original knowledge check

Answer every question before checking. Review explanations after submitting; retry starts a new attempt.

Sources and coverage status

These original lessons are drafts. Public outlines are used to check scope; the official learning-outcome text and proprietary question banks are not reproduced here. Follow the source for exam-year requirements and updates.